-20.72% is the change from 777 to 616
Calculation steps:
[( 616 - 777 ) ÷ 777] x 100 = -20.72%
Formula
Percentage change = [(616 - 777) / 777] x 100
Subtract the new number by the original number
616 - 777 = -161
-161 ÷ 777 = -0.2072072072072072
-0.2072072072072072 x 100 = -20.72%